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Trimble Zephyr Model 2 GPS GLONASS GNSS Antenna

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Trimble Zephyr Model 2 GPS GLONASS GNSS Antenna P/N: 57970-00
Item ID: X2742-L/T*
Condition: Refurbished
Warranty: 90 Day Exchange


* Trimble Zephyr Model 2 GNSS Antenna P/N: 57970-00 [ID- X2742-L/T*]


Trimble Zephyr Model 2 GNSS Antenna
The new Trimble® Zephyr™ 2 and Zephyr Geodetic™ 2 antennas break new ground in GNSS surveying antenna technology. Both antennas support modular Trimble systems such as the Trimble® R7 GNSS and Trimble® 5700 GPS receivers, and can be used as part of the Trimble GNSS Infrastructure solution.

The Trimble Zephyr 2 GNSS antenna is typically used in roving applications. It minimizes multipath, and offers robust low elevation tracking and sub-millimeter phase center repeatability

A Trimble GNSS rover comprising the rugged Zephyr 2 and a receiver such as the Trimble R7 GNSS is extremely flexible: Attach the antenna to the top of a pole, wear it on the purpose-built Trimble backpack, or drive with the Zephyr 2 mounted on the roof of a vehicle. The Trimble Zephyr 2 supports the way you want to work.

The Trimble Zephyr 2 and Zephyr Geodetic 2 antennas offer full support for coming and near-future GNSS signals, including GPS L2C and L5, GLONASS, and even Galileo. This technology future-proofing, in combination with the rugged durability of each antenna, means any investment in a Trimble Zephyr GNSS antenna will last for many years.


  • Comprehensive GNSS support, including GPS Modernization signals, GLONASS, and Galileo
  • Robust low-elevation satellite tracking
  • Minimized multipath
  • Sub-millimeter phase center repeatability
  • Ideal for fixed reference stations and GNSS infrastructure networks


Broad GNSS Frequency Tracking Band Including:
  • GPS: L1, L2, L5
  • GLONASS: L1, L2, L3
  • Galileo: E1, E2, E5, E6
  • SBAS: WAAS, EGNOS, QZSS, Gagan, MSAS, and OmniStar
  • Quality signal tracking, even below 5 degrees elevation
  • Four point antenna feed for phase center stability and enhanced polarization
  • TNC female signal connector
  • Small cross-sectional area to reduce wind loading
  • 13 dB amplifier margin supports cable runs of over 60 m without special coaxial cable or in-line amplifiers
  • North orientation marking on exterior
  • 50 dB signal gain for reliable tracking in difficult environments
  • Low voltage, low power consumption
  • Integral low noise amplifier
  • 5/8" x 11 female threaded stainless steel mount point
  • Powered by GNSS receiver via coaxial cable
  • Advanced LNA (low noise amplifier) to reduce jamming by high power out-of-band transmitters
Dimensions 16.5 cm diameter x 7.6 cm height (6.5 in diameter x 3 in height)
Weight 0.64 kg (1.4 lb)
Operating Temperature –40 ºC to +70 ºC (–40 ºF to +158 ºF)
Humidity 100% humidity proof, fully sealed
Shock and Vibration Tested and meets the following environmental standards:
Shock: MIL-STD-810-F to survive a 2 m (6.56 ft) drop onto concrete
Vibration: MIL-STD-810-F on each axis
Input Voltage 3.5 V DC to 20 V DC
Input Current 125 mA maximum